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Audacity v1.3.8 Beta released

The Audacity Team has announced the release of Audacity v1.3.8 (Beta) for Windows, Mac OS X and Linux/Unix. It contains a number of significant improvements, plus some bug fixes.

Highlights include:

  • VST Effects now display in GUI mode by default.
  • Updated Nyquist implementation.
  • Improvements to Equalization, Noise Removal, Truncate Silence, Click Track and effects chains.
  • Improved Plot Spectrum analysis and new preferences for Spectrograms.
  • Record more than 16 channels (hardware/drivers permitting).
  • New "Mixer Board" view with per-track VU meters.
  • AMR NB export support via the optional FFmpeg library.
  • 32-bit float data over 0 dB handled without clipping.
  • Draft Manual/Quick Help included in Windows and Mac installers.
  • Faster waveform drawing and better response in multi-track projects.
  • Various bug fixes, stability and accessibility improvements.

In Detail

New Features:

  • Effects and Analysis:
    • VST Effects now display GUI by default.
    • Faster Equalization and Noise Removal; improved Truncate Silence and Click Track.
    • Chains applied to files now clear temporary data after processing each file.
    • Updated Nyquist implementation with support for SAL syntax and improved memory management.
    • Plot Spectrum now analyzes up to 237.8 seconds of audio, with separate windows for each project and improved display; new preferences for Spectrograms.
    • Contrast Analysis tool now modeless for easier use.
  • Interface:
    • Draft Manual/Quick Help included in Windows and Mac installers.
    • New "Mixer Board" view with per-track VU meters.
    • Mute, solo, gain, pan and track height saved in projects.
    • More compact Preferences window with easier-to-use Keyboard tab and new toolbars shortcuts.
    • New Screenshot Tools and improved screen reader support.
  • Other:
    • Record more than 16 channels (hardware/drivers permitting).
    • Improved support for non-mmap ALSA devices such as PulseAudio.
    • 32-bit float data over 0 dB now handled without clipping.
    • "Stop" option when importing preserves already imported data.
    • AMR NB export now supported if the optional FFmpeg library is installed.
    • Faster waveform drawing and better response in multi-track projects.

Bug fixes for:

  • Export Multiple: failed if empty label encountered; files silenced if overwriting imported WAV files without copying them in.
  • Metadata Editor hidden if it was on a now unavailable second monitor.
  • Misaligned audio after "Split New" or Noise Removal effect.
  • Incorrect label movement and paste with linked audio and label tracks.
  • Equalization, Cut Preview and Advanced Mixing Options dialogue.
  • (Linux) Mixer Toolbar should now adjust levels and select input sources properly.
  • "Audio cache" preference caused crashes - data is now only cached in memory if available RAM is above a level defined in preferences.
  • Various other crashes.
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